Sheet metal



, E. JORDAN( PRESS EUR WORKING SHEET METALI (No Model.)

No. 250.255; Pen-teted N0v.^29;1881`."

SSH

? wwmld- UNITED STATES PATENT OFFICE.

EDMUNDJOEDAN, OE BROOKLYN, ASSIGNOE, EY DIEEor AND MESNE ASSIeNMENTS, ToELIPHALET w. BLISS, OE NEW YOEK, N. Y.

PRESS FORwoRKlNG SHEET METAL.

SPECIFICATION formingpart of Letters Patent No. 250,255, dated November29, 1881.

Application leil December 31, 1880. (No model.)

To all whom it may concern:

Be it known that I, EDMUND JORDAN, of Brooklyn, in the county ot' Kingsand State of N ew York, have invented certain Improvements in Pressesfor Working Sheet Metal, of which the following is a specification.

rlhis invention relates to that class of presses designed for pressingor stamping sheet metal; and its object is to provide for thedisengagement of the stamped article from the dies in a more positiveand etfective manner than is attainable with the ordinary appliancesused for that purpose, and also less liable to derangement of theapparatus itself'.

The invention comprises certain novel combinations of parts, whereby theaforesaid object is eifectually secured.

Figure 1 is a side elevation and partial longitudinal sectional view ofan apparatus ernbracing my said invention, and Fig. 2 is a frontelevation and partial vertical transverse sectional view ofthe same.

A is the frame ofthe apparatus, which, being substantially of theordinary construction, needs no special description here.

B and C are the upper and lower dies, which have, of course, aconfiguration and construction suitable to the particular variety ofwork for which they may be designed. The upper die, B, is provided withthe circumferential screw-thread, as represented in Fig. 2, by which itis screwed into a shell, D, the said shell being, of course, providedwith an internal screwthread for the purpose. Extending upward from thecenter or axis of this shell D is a tubular sleeve, (indicated at dottedoutline at a. in Fig. 2,) which tits into a socket, (shown at bin Fig.1,) this socket bein g provided in the lower end of thevertically-moving head E of the ap# paratus, this head being placed inguides provided to the frame A in the usual way, and therefore requiringno specific description, and the said head receiving its verticalmovement through alever, F, the short arm of which works in a socket, o,as represented in Fig. 1. The die B has formed in its under side anannular groove, e, (represented in Fig. 1,) into which is fitted anannulus, f, which, when forced upward into the groove c, formspractically part 0f the die, the lower surface of the Said annulus beingcoincident with the adjacent end surface of the other portions of thedie.

F" is a plate, from which extend downward short rods g, the short rodspassing through suitable holes in the upper part ot' the die B, andhaving their lower ends attached to the top ot' the annulnsf. Extendingupward from the center of the plate F is a stem, t', which passesthrough the Sleeves c of the shell D, with its upper end bearing againsta stud, m, which projects downward from a slide, Gr, the space betweenthe die B and the top of the shell D being sufcient to permit a verticalmovement of the said plate, and consequently of the short rods g and theannulusf. The slide G is yoke-Shaped, as indicated in section in Fig. 1and in dotted outline in Fig. 2, in order that it may be placed astrideand outside of the Socket c ot' the head E, and yet within the saidhead.

It is to be observed that the stud m fits into the upper part ot' thebore, the lower part of which constitutes the socket b, for thereception of the sleeve e. A similar stud, a, extends up Ward from thetop of the slide G into a cylindrical chamber, I, in the upper part otthe head E. The lower part of the chamberI serves as a guide for thestud n, while its main postion constitutes a receptacle for a spiralspring, K, which presses downward upon the stud n, and consequently uponthe slide G. This spring may be compressed to any desired extent bymeans of a screw, L, which works through a suitable nut inthe top of thehead E, and bears against a washer placed upon the upper end of thespring K. The die B, being screwed into the shell D, as hereinbeforeexplained, has a much more solid attachment to its actuating mechanismthan is obtained by the usual devices for that purpose. In the operationofthe press the downward movement ofthe die Bin shaping the metal to therequired form forces upward the annulus f, with reference to the saiddie, during the operation ot' compressing or shaping the metal; but whenthe die B moves upward, the yoke Gr is forced downward by the spring K,and thereby throws downward the annulus f and detaches the stamped metalor completed article from the die, and thereby discharges the same fromthe latter.

It is, of course, to be understood that the annulusf is so attached tothe lower extremities of the short rods g as to follow the movement upor down of the said studs with reference to the die B.

The die C has Iformed in its upper side an annular groove, e', in whichis placed an annulus,f, which is connected by rods g with the annularplate F', which is forced upward by a spring, N, which may be ofindia-rubber, and which may be placed around the tube P, as representedin Fig. 2.

A nut, r, may be screwed upon the lower end of the said tube P, toafford a support for the bottom of the spring Y.

It may be remarked that the tube P is a continuation of the centralopening, s, ofthe lower die, through which a portion cut from thesheetmetal blank is allowed to fall duringthe stamping or pressingoperation by which the blank is brought into the shape desired. Duringthe stamping operation the ring f is depressed ush with the otherportions of the die C in substantially the saine manner that theannulusfis brought flush with the other portions ofthe die B; but whenthe die B is lifted, thereby releasing the sheet metal, the latter, incase it adheres to the die C, is forced out therefrom and discharged bythe upward movement of the annulusj", acted upon by the spring N.

The die Gis attached in place as follows: The said die is provided withthe circumferential flange, or, as the equivalent thereof', with flatradially-projecting lugs a, which rest upon the adjacent portions of theframe A, as more clearly represented in Fig. 2. Provided in thehorizontal portion of the frame A are fixed boxes R, one of which, withits contents, is shown in section at the left-hand side of Fig. 2. Ineach of these boxes is placed a block, T, the upper surface of whichforms an inclined plane, as represented in the said Fig. 2, and whichhas extending up from it through a suitable opening in the top of thebox a stem, w, upon the upper end of which is a hook, rv. Placed aboveeach block T is another block, W', the under side of which is inclinedopposite to the contiguous surface of the block T, so that when thebloekWis moved inward the block T will be forced downward within thebox. The block NV, itmust be mentioned, has in it a vertical elongatedslot, which permits the passage through it of the stem w. The block W ismoved in or out, as occasion requires, by means of a screw, X, whichworks in a suitable nut formed in the outer end of the box, the saidscrew being provided at its outer extremity with a suitable means ofturning-as, for example, a hand-wheel, y. The hooks w being placed overthe lugs u, and the screws X. being turned to force the blocks W inward,the blocks T are crowded downward, and thereby cause the hooks .fr tofirmly gripe the lugs u against the supporting portions underneath theframe A. The die C is by this means rmly attached in place, and yetcapable, on occasion, of being very readily detached or replaced, ascircumstances may require.

What I claim as my invention is- 1. The combination of the upper die,having the annular groove c, the annulus j', and plate F", connected bythe rod g, the slide Gr, spring K, and sliding head E, the said partsbeing constructed and arranged for joint use and operation substantiallyas and for the purpose herein set forth.

2. The combination of the lower die, having the annular groove c',theannulusf, and plate F', con neeted by the rods g', the spring N, andthe nut r, supported by the tube P, the whole constructed and arrangedfor joint use and operation substantially as and for the purpose hereinset forth.

3. The combination of the boxes R, the blocksT and XV, havinginclinedand coincident faces, the hooks attached to the blocks T, and the die C,the whole constructed and arranged for joint use and operationsubstantially as and for the purpose herein set forth.

EDMUND JORDAN.

Witnesses:

CHAs. H. Doxn'r, ROBERT W. Marrunws.

